What is your default umask set to? Did you run into any problem setting a stricter default umask?

  • Tell us more about who the users are and what the security requirements are. Do the users need to collaborate? Or are they strangers who should actually be separated by far more than unix file permissions?
    – nealmcb
    Jan 10, 2011 at 2:45
  • @nealmcb they should be separated by far more than unix file permissions. most of them don't get shell access. Jan 10, 2011 at 7:24

1 Answer 1


027 on most systems. This gives a default of rw-,r--,--- which is suitable for me. I have seen some environments use 077, but unless the users are very limited in what the can do (so why give them a shell at all?) or experienced it just causes helpdesk/IT issues.

  • 2
    Linux and some of the BSDs seem to have got this weird thing recently where the default group of each user is named after that user and has no members, so 007 means no-one can read files (by default).
    – user185
    Jan 11, 2011 at 19:40

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.